Component Testing
WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
- Connect a 3 A fused jumper wire between the test points:5 V Reference terminal 3 & 5 V
- Connect a jumper wire between the test points:Low Reference terminal 1 & Ground
- Test for 2.5 to 4.0 V between the test points:Signal terminal 2 & Low Reference terminal 1
- If not between 2.5 to 4.0 V
Replace the component:B47B Fuel Rail Pressure Sensor
- If between 2.5 to 4.0 V
- If not between 2.5 to 4.0 V
- All OK.